Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity …

Sleep is a body process that allows your body to rest, repair and restore itself. You need sleep to function properly. Lack of sleep has links to many health issues.

2025年7月10日 · Everyone needs sleep, but about one in three American adults don’t get enough of it. The consequences of sleep deprivation are serious, so it’s worth learning why sleep …

2024年5月15日 · Quality sleep means you are getting uninterrupted and refreshing sleep. Getting quality sleep is not just about how many hours you sleep, but how well you sleep.

2025年1月31日 · Consider simple tips for better sleep, from setting a sleep schedule to including physical activity in your daily routine. Many factors can interfere with a good night's sleep — …

What exactly does sleep do for your body and mind? Here’s what researchers know about the science of sleep—including the stages of sleep, your biological clock, health connections and …

2025年2月25日 · Sleep is a complex and dynamic process that affects how you function in ways scientists are now beginning to understand. This webpage describes how your need for sleep …

We seek out the latest scientific insights about sleep and turn our findings into simple-to-understand resources that help people get enough of the healthy, restorative sleep they need.

2024年1月19日 · Learn how to overcome sleep difficulties and enhance your well-being with our expert tips and advice on achieving better sleep.

2025年9月18日 · Many people struggle to fall asleep, but there are some simple tricks to help people do so more quickly. Learn about some effective ways to get to sleep here.